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The solubility of gasses in liquids usually _________ with an increase in temperature and _________ with a decrease in temperature.
1. Decreases, Decreases
2. Increases, Increases
3. Increases, Decreases
4. Decreases, Increases

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Correct Answer - Option 4 : Decreases, Increases

The solubility of gasses in liquids usually decreases with an increase in temperature and increases with a decrease in temperature.

  • That gasses solubility reduces as temperature increases, the practical explanation for this is that since certain gasses dissolve in solution, the mechanism becomes exothermic.
  • This means the heat is released as the gas dissolves.
  • That is somewhat close to the explanation that vapour pressure rises with temperature.
  • Increased temperature induces an increase in kinetic energy.
  • Higher kinetic energy causes more motion in gas molecules that break intermolecular bonds and escape from the solution.

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